Wall.



No. 822,594. PATENTED JUNE 5, 1906.

. J. A. FERGUSON.

WALL.

APPLICATION FILED THE. 8, 1905.

uummun ANDREW s (mum 10., Pumo-umoqmmsus. msumnmn, n. c.

UNITED STATES PATENT OFFICE.

WALL.

Specification of Letters Patent.

Patented June 5, 1906.

Application filed February 8, 1905. Serial No 244,783.

To all whom, it may concern:

Be it known that I, JOHN ALBERT FERGU- SON, a citizen of the UnitedStates, residing in the city and county of Denver and State of Colorado,have invented certain new and useful Improvements in Walls, (Case 13,)of which the following is a specification.

This invention relates to walls composed of blocks of the same characteror one course in each tier of the same character and the opposite coursein the same tier of a different .char acter. The blocks may be moldedfrom any plastic material, including concrete, cement, or anycomposition of materials.

The objects of the present invention are to provide a strong and durablewall which can be readily constructed, one which has the appearance whencompleted of finished or designed stone, and one which is renderedimpervious to heat, cold, and moisture by the provision of suitableair-ducts in the wall.

In the preferred construction the blocks are laid in tiers or courses,each tier composed of two rows of blocks having their projectionsdisposed toward each other. The blocks are laid to break joints and toform bonds.

The present invention in the preferred construction and modified formsthereof is illustrated in the accompanying drawings, in

which corresponding parts throughout the different figures arerepresented by the same reference-letters, and in which- Figure 1 is aperspective view of a section of a wall built of blocks of the samecharacter. Fig. 2 is a top plan view of one tier of Fig. 1. Fig. 3 is atop plan view of one tier of a wall, the tier formed of two courses, theblocks in one course being the same as those illustrated in Figs. 1 and2, the blocks in the other course being of a modified form, thoughembracing the same principle.

The primary principle involved in this invention is readily embodied indifferent forms, not only as illustrated, but in other modifications, ashereinbefore stated; The preferred construction will be composed of theblocks illustrated in Figs. 1 and 2. It will be observed that theblocks, as shown in Figs. 1 and 2, form one row of some of the modifiedforms of construction, especially those illustrated in Fig. 3.

Referring more particularly to the primary blocks shown, especially inFigs. 1 and 2 of the drawings, in which the wall is constructed of theseprimary blocks in all tiers and rows, I designate the main portion ofthe blocks by the letter A. The said blocks have angularly-disposedterminal flanges a and an intermediate projection a of equal length tothe terminal flanges. Between the end flanges and the intermediateprojections are juts or protuberances a The blocks are laid in ajuxtaposition manner, forming two rows, with the projections disposedtoward each other, constituting a tier of the wall. The blocks in eachtier are arranged to break joints with the preceding tier, asillustrated in Fig. 1. It will be observed that the terminal flanges oftwo abutting blocks in each row engage a jut or protuberance of theblock in the opposite ,row of the same tier. The central or intermediateprojections of the blocks also engage juts or protuberances of theblocks in the opposite row, the construction being in the preferred formsuch that the projection a is substantially double the thickness of theterminal flanges, as shown in the drawings.

In giving a more detailed description of the modified forms Irefer,first, to Fig. 3, in which the primary block A is used for one row ofeach tier and a modified form of block (represented by B) is used in theopposite row of the same tier. It will be observed that while the blocksB are somewhat different in character the same principle is embraced.The essential difference is that the terminal flanges are shorter thanthe terminals a, as seen at I). The central or intermediate projectionsare reduced to juts or protuberances 12 The juts or protuberances a onthe block A are (in the modified form represented by B) long projections6 In laying up a wall of the blocks A and B it will be manifest that theprojections 11 of the blocks B engage the juts or protuberances 0. ofthe blocks A. The terminal flanges a of the blocksA engage the centraljuts or protuberances b of the block B, and the terminal juts orprotuberances b of the blocks B engage the central or intermediateprojections 0 of the blocks A. In this manner of laying up a wallcomposed of these blocks of difierent character an effective bonding isalso obtained and in some instances may prove just as practical as thewall hereinbefore described and referred to as the preferredconstruction.

It is deemed important that the projections be so disposed that thespaces shall be transversely elongated, as I have found that by thisarrangement the projections are better bonded to each otherand into thewall and the lateral bonding is more effective.

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent of the UnitedStates, is

1. A wall made up of blocks each having lateral terminal projections,and three or more lateral intermediate projections, all equally spacedapart and made alternately long and short, and laid in rows with thelong and short projections opposing each other and in superimposedcourses with the long projections of the upper course overlapping theopposed short and long projections of the course next below.

2. A wall made up of blocks each having lateral terminal projections,and three or more lateral intermediate projections, all equally spacedapart and made alternately long and short, said intermediate projectionsbeing of an uneven number, the terminal projections having the samelength as the central projections, and laid in rows with the I long andshort projections opposing each other and in superimposed courses withthe long projections of the upper course overlapping the opposed shortand long projections of the course next below.

lateral terminal projections, and three or more lateral intermediateprojections, all equally spaced apart and made alternately long andshort, said intermediate projections being of an uneven number, theterminal roj ections having the same length but hal the JOHN ALBERTFERGUSON.

Witnesses:

EVELYN S. CALVERT, ORA M. LASSWELL.

3. A wall made up of blocks each havingv thickness as the centralprojections, and laid in

